Jeromite Mineral Data + Say JEROMITE

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General Jeromite Information

Help on Chemical  Formula: Chemical Formula: As(S,Se)2
Help on Composition: Composition: Molecular Weight = 162.50 gm
   Arsenic   46.11 %  As
   Selenium  24.30 %  Se
   Sulfur    29.60 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: AsS1.5Se0.5
Help on Environment: Environment: Sublimate of burning sulfide ores in a mine fire. Does not fit the current criteria of a valid mineral species.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1928
Help on Locality: Locality: United Verde Mine, Jerome, Arizona, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality
 

Jeromite Image

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Jeromite

Comments: Orange, powdery jeromite on matrix.
Location: Salar de Surire, Tarapaca, Chile. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Jeromite Crystallography

Help on Crystal System: Crystal System: Amorphous- No Crystals
 

Physical Properties of Jeromite

Help on Color: Color: Cherry red, Red, Black.
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Streak: Streak: reddish black
 

Calculated Properties of Jeromite

Help on Fermion Index Fermion Index Fermion Index = 0.02068
Boson Index = 0.97932
Help on Photoelectric: Photoelectric:

PEJeromite = 53.13 barns/electron
U=PEJeromite x relectron= . barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Jeromite is Not Radioactive

 

Jeromite Classification

Help on  Dana Class: Dana Class: 2.12.12.1 (2)Sulfides - Including Selenides and Tellurides
  (2.12)where Am Bn Xp, with (m+n):p=1:2
  (2.12.12)Dana Group
 
2.12.12.1 Jeromite As(S,Se)2 None
Help on  Strunz Class: Strunz Class: II/F.02-90 II - Sulfides and sulphosalts
  II/F - Sulfides with nonmetallic properties, Arsenic-Sulfides
  II/F.02 - Duranusite - Jeromite series
 
II/F.02-10 Duranusite As4S Unk Ortho
 
II/F.02-20 Dimorphite As4S3 P nma 2/m 2/m 2/m
 
II/F.02-30 Realgar AsS P 21/n 2/m
 
II/F.02-40 Pararealgar AsS P 21/c 2/m
 
II/F.02-50 Alacranite As8S9 P 2/c 2/m
 
II/F.02-60 Uzonite As4S5 P 21/m 2/m
 
II/F.02-70 Orpiment As2S3 P 21/n 2/m
 
II/F.02-80 Laphamite As2(Se,S)3 P 21/n 2/m
 
II/F.02-90 Jeromite As(S,Se)2 None
 

Other Jeromite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Jeromite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Jeromite Specimen Label here :

Jeromite

As(S,Se)2
Dana No: 2.12.12.1 Strunz No: II/F.02-90
Locality:

 

Notes:

 

 
   
 
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